Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
sach thu » sach thue, sach tham, cach thuc
pham day » phap day, pham duy, pham xay
va doanh » van doanh, vay doanh, va danh
cau treo » cau theo, cau tren, cau triet
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
van cau » van dau, van hau, van chat

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach thu) OR (sach thieu)) nang xa hoi. hieu ve pham day va doanh van cau treo~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach thu) OR (sach thieu)) nang xa hoi. hieu ve pham day va doanh van cau treo".
• Adding a wildcard symbol may retrieve word variants: tu ((sach thu) OR (sach thieu)) nang xa hoi. hieu ve pham day va doanh van cau treo*.